Black horizontal line problem

I used opencv and it is not important to use other tools.
gemini e cannot adjust the shutter speed. I tried adjusting the exposure value, but if I increase the exposure value, it becomes too bright, and if I lower it, there is flickering.
Gemini E Depth Camera flickering - General - Orbbec 3D Club
I tried with OrbbeckSDK as shown in the link above, but nothing changed as I expected.